Knowledge Center
Patent / Jan 01, 1977
Polyphosphate complexes of 6-demethyl-6-deoxy-6-methylenetetracycline and its 11a-halo derivatives
Source:
ES 420504
5-Hydroxytetracycline 6,12-hemiacetal 12-phosphite was dehydrated by P2O5 to give 6-deoxy-6-demethyl-6-methylene-5-hydroxytetracycline polymetaphosphate. Similarly prepd. was 11a-chloro-6-deoxy-6-demethyl-6-methylene-5-hydroxytetracycline metaphosphate.
Also in the Knowledge Center
/ Jan 05, 2026
An integrated analytical approach to evaluate powder aggregation and predict the aerodynamic performance of homogeneous powders
Read more
Scientific Article
/ Mar 27, 2025
Pharmaceutical inhalation dry-powder sampling device, method and uses thereof
Read more
Scientific Article